Second AF after MC. So much pain.

•Jade•
I had a miscarrage at9 weeks in May just gone. I had a really light AF in June, TMI, no red blood just brown old blood. Started 25days after I miscarried. Lasted for 5days. I have now gotten my second AF and I feel like my insides are being pulled apart!
​this last cycle was 23days and I think I OV'd on cd10. 
​I spotted for 2days mon an tue, then this morning AF turned up with avengance! Really really heavy and the pain is excruciating. To me it feels like little contractions. I know they aren't but they come in waves! The pain is making me feel sick. I'm popping pills like there's no tomorrow but they are just not touching it. 
​Has this happened to anyone else after MC? How long till your periods settled back to normal? I was usual 28-30 day cycle b4. Thanks girls.